Can you find out the remainder when 3^300 is divided by 5?

What is next number in the pattern below:

131 517 192 123 ?

A chicken farmer has figured out that a hen and a half can lay an egg and a half in a day and a half. How many hens does the farmer need to produce one dozen eggs in six days?

Two friends decide to get together; so they start riding bikes towards each other. They plan to meet halfway. Each is riding at 6 MPH. They live 36 miles apart. One of them has a pet carrier pigeon and it starts flying the instant the friends start traveling. The pigeon flies back and forth at 18 MPH between the 2 friends until the friends meet.

How many miles does the pigeon travel?

Rectify the following equality 101 - 102 = 1 by moving just one digit.

What number divided by 4 is the same as that number minus 4?

A rubber ball keeps on bouncing back to 2/3 of the height from which it is dropped. Can you calculate the fraction of its original height that the ball will bounce after it is dropped and it has bounced four times without any hindrance ?

In a mathematical quiz, you are asked the following question:

Use three 9s in a mathematical expression without dividing or multiplying to form the number one.

Can you answer the question?

Double it and multiply it by 4. Then divide it by 8 and you’ll have it once more. What number is it?

Get total of 120 by using five zeros 0,0,0,0,0 and any one mathematical operator.
Do you ?